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LEGO Missing Piece Checker

Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Motion Madness

Checking

4090 Motion Madness

243 pieces in 89 part and color combinations.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

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Piece checklist

Blue 73 pieces

  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×5
  • Brick 1 x 4 Blue Part 3010 Element 301023 ×1
  • Brick 2 x 2 Blue Part 3003 Element 4103589 or 300373 ×5
  • Brick 2 x 3 Blue Part 3002 Element 300223 ×2
  • Brick Sloped 18° 4 x 2 Blue Part 30363 Element 6254675 or 6065880 ×2
  • Brick Sloped 33° 3 x 2 Blue Part 3298 Element 6294307 or 6141996 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Blue Part 3040b Element 4121936 or 304023 ×2
  • Brick Sloped 45° 2 x 2 Blue Part 3039 Element 303923 ×1
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Blue Part 3747a Element 4500460 or 374723 ×2
  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper Blue Part 4287a ×2
  • Brick Sloped Inverted 45° 2 x 1 Blue Part 3665 Element 366523 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Blue Part 3660 Element 366023 ×5
  • Brick Special 1 x 1 with Headlight Blue Part 4070 Element 407023 ×2
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Blue Part 73983 Element 6102759 or 4119371 ×2
  • Plate 1 x 10 Blue Part 4477 Element 447723 ×2
  • Plate 2 x 6 Blue Part 3795 Element 379523 ×2
  • Plate Special 3 x 2 with Rounded End, Hole Blue Part 3176 Element 317673 or 317623 ×1
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×8
  • Technic Axle and Pin Connector Angled #6 - 90° Blue Part 32014 Element 4112205 ×4
  • Technic Brick 1 x 10 [9 Pin Holes] Blue Part 2730 Element 273023 ×2
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Ridges Blue Part 32064c ×7
  • Technic Brick 1 x 4 [3 Pin Holes] Blue Part 3701 Element 370123 ×4
  • Technic Brick 1 x 6 [5 Pin Holes] Blue Part 3894 Element 389423 ×4
  • Tile Special 1 x 2 Grille with Bottom Groove Blue Part 2412b Element 241223 ×2
  • Wedge Plate 8 x 4 Wing Left Blue Part 3933 Element 4194239 or 393323 ×1
  • Wedge Plate 8 x 4 Wing Right with Stud Notch Blue Part 3934 Element 4194240 or 393423 ×1

Black 58 pieces

  • Brick 1 x 10 Black Part 6111 Element 611126 ×1
  • Brick 1 x 6 Black Part 3009 Element 300926 ×2
  • Brick Sloped 33° 3 x 1 Black Part 4286 Element 428626 ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 ×4
  • Plate 1 x 4 Black Part 3710 Element 371026 ×2
  • Plate 2 x 2 Black Part 3022 Element 302226 ×8
  • Plate 2 x 2 Corner Black Part 2420 Element 242026 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×2
  • Rubber Band Medium (Square Cross Section) Black Part 71156 Element 71156 ×4
  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×8
  • Technic Axle 4 Black Part 3705 Element 370526 ×6
  • Technic Axle 6 Black Part 3706 Element 370626 ×2
  • Technic Axle 8 Black Part 3707 Element 370726 ×1
  • Technic Axle Connector with Axle Hole Black Part 32039 Element 4107081 or 3203926 ×1
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×2
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×7
  • Technic Pin with Friction Ridges Lengthwise and Towball Black Part 6628 Element 4184169 or 662826 ×2
  • Tyre with Centre Groove [Tightrope Guide Wheel] Black Part 44799 Element 4194205 ×1

Medium Blue 34 pieces

  • Brick Wedged, Curved Inverted 6 x 2 Left Medium Blue Part 41765 Element 4161287 ×2
  • Brick Wedged, Curved Inverted 6 x 2 Right Medium Blue Part 41764 Element 4161272 ×2
  • Plate 1 x 2 Medium Blue Part 3023 Element 4179825 or 4165460 ×6
  • Plate 1 x 6 Medium Blue Part 3666 Element 4179829 ×4
  • Plate 2 x 2 Corner Medium Blue Part 2420 Element 6332365 or 4598010 ×2
  • Plate 2 x 4 Medium Blue Part 3020 Element 6302678 or 4650970 ×6
  • Plate 2 x 6 Medium Blue Part 3795 Element 6101858 or 4598008 ×2
  • Plate 2 x 8 Medium Blue Part 3034 Element 6618735 or 4194241 ×1
  • Technic Axle and Pin Connector Angled #3 - 157.5° Medium Blue Part 32016 Element 4172098 ×4
  • Technic Beam 1 x 2 Thin Medium Blue Part 41677 Element 4172111 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] Medium Blue Part 3700 Element 6004881 or 4193342 ×2
  • Tile 2 x 2 with Groove Medium Blue Part 3068b Element 4528357 or 4188291 ×1

Yellow 26 pieces

  • Brick Round 2 x 2 with Axle Hole Yellow Part 3941 Element 614324 or 394124 ×4
  • Brick Sloped 33° 3 x 1 Yellow Part 4286 Element 428624 ×2
  • Cone 2 x 2 x 2, Open Stud Yellow Part 3942c Element 6055404 or 6022159 ×1
  • Large Figure Weapon, Claw Hook with Axle Yellow Part 32551 Element 4154757 ×1
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×6
  • Plate 1 x 8 Yellow Part 3460 Element 346024 ×2
  • Plate 2 x 2 Corner Yellow Part 2420 Element 242074 or 242024 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] Yellow Part 3700 Element 370024 ×2
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Ridges Yellow Part 32064c ×2
  • Technic Slope Long 1 x 6 with 3 Pin Holes Yellow Part 2744 Element 4547043 or 4190417 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Yellow Part 2412b Element 241224 ×2

Light Gray 23 pieces

  • Technic Axle 3 Light Gray Part 4519 Element 4186007 ×4
  • Technic Axle and Pin Connector Toggle Joint Smooth Light Gray Part 32126 Element 4112931 ×4
  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 1 spare in the box ×4
  • Technic Gear 12 Tooth Double Bevel Light Gray Part 32270 Element 4141454 or 4125322 ×2
  • Technic Gear 24 Tooth [New Style with Single Axle Hole] Light Gray Part 3648b Element 4107543 or 364802 ×1
  • Technic Gear 40 Tooth Light Gray Part 3649 Element 364902 ×1
  • Technic Pin Long without Friction Ridges - Single Slot Light Gray Part 32556a Element 4154753 ×4
  • Technic Pin without Friction Ridges Lengthwise Light Gray Part 3673 Element 4184166 or 367302 ×3

White 22 pieces

  • Lever Small Base with Black Lever White Part 298c02 Element 73737 1 spare in the box ×3
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 ×4
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×2
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×3
  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 1 spare in the box ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) White Part 4032a Element 6601914 or 403201 ×2
  • Technic Axle and Pin Connector Angled #1 White Part 32013 Element 6332573 or 4118981 ×1
  • Technic Axle and Pin Connector Angled #2 - 180° White Part 32034 Element 6271870 or 4125554 ×4
  • Wheel with Split Axle hole White Part 3482 Element 4279395 or 4194244 ×1

Dark Gray 4 pieces

  • Technic Axle 3 with Stud Dark Gray Part 6587 Element 4113884 or 658727 ×2
  • Technic Axle and Pin Connector Perpendicular Dark Gray Part 6536 Element 4173659 or 4141206 ×2

Tan 2 pieces

  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×2

Red 1 piece

  • String Cord Medium Thickness 487cm Red Part 14728c487 Element 4195075 ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.

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